Adjustable locking and blocking device



FIG. 1 is a front-right-top perspective view of the adjustable locking and blocking device showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear front elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is a perspective view of the adjustable locking and blocking device adjusted to differing heights. 

CLAIM The ornamental design for an adjustable locking and blocking device, as shown and described. 